Why does integer work and not boolean

[LiquidE_SA]

Can anyone please tell me why this code code gives a segmentation? The class NonLeafTrieNode { public: NonLeafTrieNode(){}; NonLeafTrieNode(char); private: friend class Trie; NonLeafTrieNode **ptrs; char *letters; int endOfWord; **bool** isLeaf; }; The code below are in the Trie class and I use this to access the isLeaf variable in the class. int flag = p->ptrs[pos]->isLeaf; if (!(pos == -1) && flag) If I keep the isLeaf variable a boolean the code gives a segmentation fault, but whenever I make it a integer the code works perfectly. Can anyone tell me why this happens. Thanks a lot LiquidE_SA

[Matt Godbolt]

A very strange bug; sounds to me like some kind of memory access splat. There's not too much to go on from your example, but the fact you're using an array (ptrs[]) and that changing the size of the class (by changing bool to int [see note]) causes a crash, sounds to me like something somewhere isn't accessing the right memory. Ensure you've allocated enough memory for ptrs[] and that 'pos' is in within a valid range - if that doesn' solve it perhaps post a bit more information - whereabouts is the crash? I assume it's on the 'p->ptrs[pos]->isLeaf' line. Matt Godbolt Engineer, ProFactor Software StyleManager project

[AndrewVos]

mmmm, huffman